edit: after the first comment, I adapted the question
When adding a rule in GUFW/Advanced there are three choices for logging. From the man ufw page/sectin LOGGING i learned
do not log - log nothing
...

The rule I'm having problems with is the following:
After setting it, I'm still able to use Firefox to connect to a HTTP server. Why is that rule not working? From what I understand, the reply of the ...

I used the graphic firewall in 18.04 to create rules for 3 services. At the time they were created, the rules were fine and the items accessible from other machines on my home network.
The next day, ...

I really like the way firestarter shows active connections and a few other features which gufw does not have. But I am wondering whether a firewall which active development ended in 2005 (firestarter) ...

I have on my windows PC a VM with ubuntu 17.04.
I want to enable request only from my winPC to ubuntu and deny the rest so I need to set up the firewall.
I try to set up the firewall from gufw. To try ...

I'm new to Linux.
On Windows I'm used to have the firewall triggered automatically by an application and then I authorize whether or not to let the application access real world.
Linux using UFW has ...

So i'm running ubuntu on my vps. But the problem is that i have kids trying to figure out the password of the FTP connection and the VNC connection. (with succes).
Now i want to ask is there a way to ...

Trying to set up gufw so that it if my vpn connection drops, my computer won't be able to access the internet any more.
My plan was to block all outgoing, but allow only a connection to the IP of my ...

I'm using Remote Desktop Manager to access another system which uses Ubuntu 14.04 with Xfce 4.10 desktop. I recently installed Gufw. When I click it from Application Menu\Systems, it does not open.
...

I've just installed gufw on my notebook. I'm trying to setup my laptop with a very secure - roadwarrior - type of configuration. So the choices available in GUFW with a public, home and office profile ...

I bought a new machine, so, what I did was save my current iptables using iptables-save and imported the rules into the new machine with iptables-restore command.
If I run iptables -L command in the ...

I have installed the Ubuntu system, and deny both incoming and outgoing ports loosing internet access.
Now I want access only for my Firefox that I have installed separately from the Firefox website ...

I only want http, https and DNS to be open.
I'm having troubles with setting up port ranges in the UFW GUI. How do I input configs into the feilds?
Basically, something along the lines of this, but ...

I just recently made the switch from Windows to Ubuntu, and I'm just a little paranoid when it comes to security measures.
I've looked around and from what I've read, security is not as big a concern ...